- Oakhurst to Seasons Darling Harbour
- Oakville to Seasons Darling Harbour
- Oatlands to Seasons Darling Harbour
- Oatley to Seasons Darling Harbour
- Old Guildford to Seasons Darling Harbour
- Old Toongabbie to Seasons Darling Harbour
- Oran Park to Seasons Darling Harbour
- Orchard Hills to Seasons Darling Harbour
- Oxford Falls to Seasons Darling Harbour
- Oxley Park to Seasons Darling Harbour
- Oyster Bay to Seasons Darling Harbour
- Sydney Airport to Seasons Darling Harbour
- Seasons Darling Harbour to Oakhurst
- Seasons Darling Harbour to Oakville
- Seasons Darling Harbour to Oatlands
- Seasons Darling Harbour to Oatley
- Seasons Darling Harbour to Old Guildford
- Seasons Darling Harbour to Old Toongabbie
- Seasons Darling Harbour to Oran Park
- Seasons Darling Harbour to Orchard Hills
- Seasons Darling Harbour to Oxford Falls
- Seasons Darling Harbour to Oxley Park
- Seasons Darling Harbour to Oyster Bay
- Seasons Darling Harbour to Sydney Airport